"Community has always been on the bubble and we decided to bring it back and see what a fourth season will do for us," Greenblatt explained at the Television Critics Association Press Tour.

"I think the fans of Community are going to get the same show that they have loved from the beginning. [But] every so often, it's time to make a change with the showrunner.

"You sort of evaluate the creative [team] and how the show is run and how the writing staff works. Sometimes you want to freshen the show. We just decided it was time to do that on Community. No disrespect to anyone."